Microporous membranes prepared via thermally induced phase separation from metallocenic syndiotactic polypropylenes

Preparation of polyethylene microporous membranes with high water permeability from thermally induced multiple phase transitions

“…Then, the cellular structure forms [5,13,15,17,18], and the water permeability depends greatly on the porosity on the polymer network, which is usually very low for amorphous polymer and semicrystalline polymer. Decreasing the content of polymer in polymer/diluent solution may possibly increase the water permeability at the cost of mechanical properties.…”

Evaluación computacional del flujo a través de membranas porosas

“…Generalmente los materiales porosos presentan estructuras aleatorias [8], pero dado que es difícil establecer una estructura aleatoria representativa y, más aún, cambiar sus parámetros, para este estudio se optó por la utilización de arreglos triangulares desfasados de esferas, como el mostrado en la Fig. 1.…”

Effect of Adipic Acid Concentration on the Isotactic Polypropylene Flat Sheet Using Methyl Salicylate Prepared by TIPS for CO2/N2 Separation

“…12 However, the NIPS method is less favourable due to the difficulty in controlling membrane porous structure compared with TIPS. 13 The TIPS technique is known for its simplicity and easy to control the pores of membrane. In TIPS, to obtain a polymer-rich continuous matrix, the homogeneous polymer solution needs to undergo liquid-liquid demixing known as polymer-rich phase.…”